15134784209 has 4 divisors (see below), whose sum is σ = 15235014720. Its totient is φ = 15034553700.

The previous prime is 15134784199. The next prime is 15134784221. The reversal of 15134784209 is 90248743151.

15134784209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90248743151 = 7 ⋅12892677593.

It is a cyclic number.

It is not a de Polignac number, because 15134784209 - 2¹² = 15134780113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15134784209.

It is not an unprimeable number, because it can be changed into a prime (15134784299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50115029 + ... + 50115330.

It is an arithmetic number, because the mean of its divisors is an integer number (3808753680).

Almost surely, 2^15134784209 is an apocalyptic number.

It is an amenable number.

15134784209 is a deficient number, since it is larger than the sum of its proper divisors (100230511).

15134784209 is a wasteful number, since it uses less digits than its factorization.

15134784209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100230510.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 15134784209 in words is "fifteen billion, one hundred thirty-four million, seven hundred eighty-four thousand, two hundred nine".